Crayfish Agonistic Behaviors

The ocean is a giant body of water that is home to all types of fish. The ocean provides a rich environment for a plethora of animals from the tiniest of fish to the enormous whale. In the ocean, these creatures live and explore. Some of them must hunt other fish in order to survive, which means that others must try to avoid predators. Nature has provided all of these animals with a unique capability to survive. The ocean abounds with interesting animals of all shapes and sizes that have their unique appearances and habitats at different depths of the sea.

If fishing with live crayfish, try pinching one claw off. This makes them appear more vulnerable and helps them stand out more. To do this, just grasp one claw very firmly with a pair of pliers. The crayfish will eject the claw on its own and seal off the hole. If you try to pull it out it can kill the crayfish.

In the book Frankenstein, by Mary Shelley, the creature is raised by nature rather than nurture. Human nature is defined as our psychological characteristics , feelings, and behavioral traits shared by mankind. Human nature by itself gives humans the ability to feel and socialize, but without nurture we wouldn't be different from one another. Nurture gives humans an identity, while nature allows humans to function properly. Human nature is an important part in how humans behave and interact, but it does not play a part in the making of our individuality. Nurture is one of the most important processes in life because it encourages the growth of our personality and identity. Nature and nurture can determine someone's identity, but there are

One interesting example is the Kermadec petrel. The Great Skua is a dominant parasitic predator species in the Eastern Tropical Pacific, feeding upon other birds and fish. When at sea, the skua usually obtains its nutrition by kleptoparasitism. Skuas search for smaller seabirds that have just caught food, then chase them and force them to regurgitate or drop their fresh catches. If the victim resists, the skua uses terror tactics by knocking its victim out of the air and into the water, grabbing onto its neck and viciously shaking it, or holding its head under water. Through operant conditioning, the victim birds have learnt not to even attempt to flee or resist, but instead to give up their catch as soon as a skua is visibly closing in. This has proven to be a very successful strategy for the skua.

Personality is a range of correlated behaviours that are expressed in different contexts. Animals exhibit behavioural syndromes, which is a set of behaviours seen in multiple scenarios. (huntingford 1976 as read in Pelligrini et al., 2010)..Find this!. An example of a behavioural syndrome is the shy/bold continuum (i.e. proactive-reactive) (Wilson et al., 1994 as read in Pellegrini et al., 2010). Boldness has been studied in many species. In fathead minnows, bolder individuals approach danger by inspecting predators (Pelligrini et al., 2010). Some studies claim that animal personality traits might be affected by experience. For example in rainbow trout, bold fish that experience a negative experience may become less bold (Frost et al., 2006).

The relationship between humans and horses throughout history has consistently followed the same types of patterns. Some people see horses as sweet companions to bond with, while others see them as work animals. However, the one idea that needs to be grasped by every person is that horses need proper training. My argument is that horses need to be taught manners based on how horses naturally establish a pecking order in a herd. This type of training is called “Natural Horsemanship”. Natural Horsemanship is the best training method because it establishes safety and a good relationship between the horse and handler.

Channa Argus, commonly known as the northern snakehead, is one of the many invasive species around the world. This species is a top level predator and was introduced to several American states in 2002, but its natural habitat is based in southern and eastern Asia. Northern snakeheads were transported to the waters of America by being sold from pet stores and live food fish markets, followed by being released into the wild. The northern snakehead fish threatens and competes for the native species’ resources and habitat.

The word “monster” has been around for many centuries and although the interpretation of the word has evolved it still goes back to fundamentally being a mysterious creature that is grotesque that ends up striking fear into others because of their devilish intentions. In this essay I will argue as to what it truly means to be a monster. It is agreed by most that a monster is a type of mysterious large creature, with some sort of negative connotation. This negative connotation can be physical appearance, personality, or intent. Technically, a monster should only be something spoken of in fairytales or legends; a mythical creature that resembles something of a mix between a human and an animal. But as we further study the transformation of the word “monster” we realize that not all monsters belong in fairytales and legends.

Unlike the human digestion system, crayfish have a rather simple system. Starting with the mouth, food is ingested and passed into the cardiac stomach via the esophagus. In this first stomach food is stored until it is passed into the pyloric stomach; filled with small “teeth” like structures. Once ground the food is handed out to the intestine, where nutrient is absorbed into the blood vessels and taken around the body. After the intestine, the excess waste is removed through the anus.

Many organisms use energy to perform their cellular functions. That energy comes from the energy that is stored in food then converted to adenosine triphosphate or ATP. ATP can be obtained with or without oxygen, aerobic respiration and anaerobic respiration. Aerobic respiration produces carbon dioxide (CO2) as a by-product while anaerobic respiration produces Ethanol (C2H6O) or Lactic acid (C3H6O3). In aerobic respiration the “CO2 produced during cellular respiration can combine with water to produce carbonic acid.” While CO2 is produced, the amount of CO2 produced is different depending on the organisms, in this case crayfish. To test the changes in pH, NaOH is used to neutralize the carbonic acid produced by the crayfish, by which the

Florida’s ecosystem is forever being changed as we know it. Florida’s invasive species list is rapidly growing making it more difficult for native species to compete. Every day invasive species are released in Florida 's waterways, forest, and swamps wreaking havoc on the native plant and animal life. Everyday people are able to walk into a common pet store and buy their very own python, tegu, or a lionfish perhaps. Most of the people enjoy the animal at first, but they are not prepared for the future responsibilities that follow. They end up in your backyard, your local canals, and even in your neighborhood parks. We must find a way to stop this terrible issue.

In this experiment the researchers were investigating the limited range of the crayfish species Orconectes saxatilis in the upper part of the Kiamichi River. The dispersal of the crayfish species O. saxatilis and two sympatric crayfish species throughout the upper part of the Kiamichi River were examined. The type of habitat that the crayfish favor for use was also examined along with their historical characteristics. Crayfish species with small habitats are in major need of conservation but little information is known about species-specific habitats. The question that the researchers were asking in this experiment was what are the primary factors that limit the distribution of the species O. saxatilis in the Kiamichi River.

The stickleback fish have gained much attention from evolutionary biologists because of their historic ability to adapt to conditions that were not favorable and to survive successfully in them. They are also able to give researchers insight into how evolution occurs in other organisms. The stickleback normally spawns in freshwater but lives in the salt-water ocean. Long ago when ice melted and receded, the fish were given new possible places to inhabit and they did, expanding their spawning locations to newly formed streams. Eventually, though, the streams were cut off from the sea and the once salt-water sticklebacks were faced with the problem of being stuck in freshwater with no way to get out.1 The presence of sticklebacks in freshwater lakes today shows that somehow the fish were able to still survive even though they were in unfavorable conditions. The question is: how did they do it?

Anglerfish were originally found in Brazil by a man named Liechtenstein in 1823, but the name Anglerfish was made in the 1900’s. Anglerfish mainly eat shrimp. Anglerfish can eat animals up to twice their size. A new species of Anglerfish was recently found, here’s a picture of what it looks like: (at the bottom of the paragraph). The Anglerfish is at the top of its food chain, so nothing hunts it except for humans. The Anglerfish has a symbiotic relationship of parasitism. The male Angler Fish will attach onto the female Anglerfish with his teeth and over time he will fuse with the female Anglerfish, and use up the resources of the female Anglerfish. A female Anglerfish can have 6 male Anglerfish attached at a time. When the female Anglerfish

The Leeuwin current, is the flow of water that runs through the southern and western side of Australia and is, the longest boundary current in the world is the Leeuwin current. The current was named after Cape Leeuwin, by researchers George Cresswell and Terry Golding. Cape Leeuwin was named after the voyager Leeuwin, it was a Dutch merchant ship, meaning lioness. The currents existence was first suggested by William Saville-Kent in 1897. It was because satellite technology created in the 70's that scientists were finally be able to confirm the existence of the current. The current is pushed along with a north-southernly pressure degree and is, at its peak of strength from May to June, which